1142621423 has 2 divisors, whose sum is σ = 1142621424. Its totient is φ = 1142621422.

The previous prime is 1142621387. The next prime is 1142621437. The reversal of 1142621423 is 3241262411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142621423 - 2²⁰ = 1141572847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142621392 and 1142621401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142621453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571310711 + 571310712.

It is an arithmetic number, because the mean of its divisors is an integer number (571310712).

Almost surely, 2^1142621423 is an apocalyptic number.

1142621423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142621423 is an equidigital number, since it uses as much as digits as its factorization.

1142621423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 1142621423 is about 33802.6836656500. The cubic root of 1142621423 is about 1045.4440312887. Note that the first 3 decimals are identical.

Adding to 1142621423 its reverse (3241262411), we get a palindrome (4383883834).

The spelling of 1142621423 in words is "one billion, one hundred forty-two million, six hundred twenty-one thousand, four hundred twenty-three".